Most people commemorated Earth Day on Wednesday in simple ways. We might have walked instead of driving, took part in a litter pickup, planted a tree or did our best to conserve water (which we should all be doing, anyway).

But how was Earth Day marked at Apple, the most popular company on the planet? Pharrell Williams — spotted wearing a gold Apple Watch — gave an outdoor concert at the Cupertino headquarters, and employees danced along as the pop star sang his hit “Happy.”

Sounds a tad more fun than cleaning up a park. But if Silicon Valley keeps flaunting its coolness like this, there better be room in that Apple spaceship for all of us to hide when the revolution comes.

BUILDING A REPUTATION: Mary Simon may have retired in 2014 as executive director of Resource Area for Teaching, but her name will be around in perpetuity at RAFT’s San Jose headquarters, which was named the Simon Center in her honor. RAFT’s mission remains the same as it did when Simon founded it in 1994 — providing low-cost, creative and hands-on learning resources for teachers — but it’s grown beyond its three Silicon Valley locations to include centers in Sacramento and Denver.

WALKS IN THE PARKS: If your Saturday morning ritual involves walking around downtown San Jose, be prepared to make some room this week. Chris Boyd, senior vice president and area manager for Kaiser Permanente, will be leading the March of Dimes Silicon Valley’s March for Babies at Plaza de Cesar Chavez, starting at 8 a.m. Check it out at www.marchforbabies.org.

A little later in the morning at Arena Green next to SAP Center, the National Parkinson’s Foundation has its Moving Day@Silicon Valley, a fundraising event with a walking course, a kids area and a “Movement Pavilion” featuring yoga, Pilates, Tai Chi and other activities proven to help manage the disease’s symptoms. Events start at 10:30 a.m., and you can get more information at www3.parkinson.org.

CULTURED FESTIVALS: A couple of Japanese-themed events are popping up on the calendar this weekend. Cupertino has its annual Cherry Blossom Festival — celebrating its sister-city relationship with Toyokawa, Japan — from 10 a.m. to 5 p.m. Saturday and Sunday at Memorial Park, on the corner of Stevens Creek and Mary Avenue.

And the 38th annual Nikkei Matsuri festival is taking place in San Jose’s Japantown from 9:30 a.m. to 4 p.m. Sunday. San Jose Taiko will be there to perform before the start of the event, which features a food court, cultural displays and plenty of performances throughout the day, all taking place around the area of Fifth and Jackson streets.